Hello student The examination authority must take proper care of students in this situation and with your admit card you may allowed to move and visit your examination center admit card will work as a moving pass for students. If you want you can contact the examination authorities and ask them about the same also if you've any request/complaints.

Contact - 91-0542-6701896

For more details refer to the link mentioned below - https://www.bhu.ac.in/lawfaculty/contact.html

Feel free to comment if you've any doubt

Good luck